Reversible and quick-changing runner and shoe



April 18, 1933.

W. J. CHAPMAN REVERSIBLE AND QUICK CHANGING RUNNER AND SHOE Filed Sept. 10, 1950 .2 Sheets-Sheet l f 10 Z My 10a =5 imnunnizam WITNESS' INVENTOR ATTORNEY WITNESS 4 I Aphil 18, 19 1 535 w. J. CHAP MAN 1,904,201

REVERSIBLE AND QUICK CHANGING RUNNER AND SHOE Filed Sept. 10, 19:50v 2 Sheets-Sheet 2 MqQ.

ATTORNEY Patented Apr. 18, 1933 I WILLIAM JOHN CHAPMAN,

PATENT OFFICE I OF VIRGINIA, MINNESOTA REVERSIBLE AND QUICK-CHANGING RUNNER AND SHOE Application filed September 10, 1930. Serial no. 480,993.

My invention relates to runners or shoes adapted forthe support of vehicles and other obj ects'which are equipped to slide over'surfaces' having a low coefficient of friction such as snow and'ice, more particularly to a runner or'shoe adapted to support a snow plow in its movements during operation, and it consists in the combinations, constructions and arrangements herein shown and described.

Operators of snow plows propelled by suitable powered means such as tractors, locomotives, or horses find that during operation of the plow the runners or shoes supv porting the same wear unevenly due to the canting or raising and lowering of the nose of the snow plow relative to the other portions of the plow by mechanical means in the control of said operator to increase the efficiency of operation, by the encountering go of obstacles in the path of the plow, or by the forces exerted by the banking of the snow on the wings of said plow. This leads to the necessity of frequently replacing the worn out shoe or runner with a new one, an operation usually requiring the services of a blacksmith or mechanic. It is therefore, a primary purpose of my invention to provide a runner or shoe which though adapted for general use wherever runners or shoes are used will, when used on a snow plow in a manner in accordance with my invention, wear evenly throughout its length despite canting movements of the p'low.

Another object of my invention is to provide a runner or shoe which may be reversed so as to assure even wearing of said runner when said runner is so used that it is subjected to forces that cause greater wear on certain portions thereof. v

A still further object of my invention is to provide a runner or shoe that may be detached, reversed and reattached in the reversed position, or detached for replacement by another runner,byafew simplemechanical operations capable of performance by any one within a few minutes and without the necessity of recourse to a blacksmith, mechanicor a repair shop.

A still further. objectof my invention is to provide a device of the'type described,

from the following specification and the in- .tion in which which has few parts, is simple to manufacture, and does not get out of order easily.

Other objects and advantages will appear vention will be more particularly defined in the appended claims.

My device is illustrated in the accompanying drawings forming a part of this applica- Figure 1 is an elevational view of a snow plow equipped with my invention,

Figure 2 is a fragmentary View of a portion of my invention, 7

Figure 3 is a perspective detail view of the F runner and runner supporting frame of m invention,

Figure 4 is a perspective detail view of the runner of my invention, and

Figure 5 is a transverse sectional view on ,7 line 55 of Figure 1.

Fig. 6 is a top plan view of a plow equipped with my invention.

In carrying out my invention I make use of a snow plow. generally indicated at 1, and having a plow wing 2, which may be of any suitable construction. This plow is adapted to be mounted on any suitable plow propulsion means such as a tractor, truck, or the like, not shown.

For supporting the plow during its passage through the snow in a manner so that the shocks incident to said passage will not cause uneven wear of the runners supporting the same, I pivotally mount on each of the wings 2 of said plow my new and improved runner 3. This pivotal mount-ing is accomplished 'bythe use of a bar interconnecting the wings and having the bent down portions 4 forming ears for supporting the runners 3 pivotally. The ears 4 are preferably secured to the runners 3 by the bolts 5. This form of mounting of the runners permits the plow wings 2 to rise and fall relative to the runners 3 without bringing about a similar movement of said runners leaving them flat on the surface to, support the load.

The two runners used in this embodiment are interconnected by a bar 6, which may be flexible to a certain degree for a purpose 100 soon to be described. It has downwardly projecting portions 7 which are connected to each of the runner supporting frames by any suitable means such as welding, etc, This bar 6 is braced to each of the frames 8 by bracing bars 9, which are pivotally connected to said frames 8 by bolts 25 and to said bar 6 at points intermediate the ends thereof. The bracing bars 9 are preferably positioned upon an outer side of the walls defining the slots 18 as shown in Fig. 2.

The plow is equipped with means for adjusting the runners relative to the wings by means of a screw 10 operatively engaged with a nut 10 at the upper portion of said plow and having apivotal connection of anysuitable nature with the bar 6 interconnecting the runners as indicated at 11. This pivotal connection in conjunction with the flexibility of bar 6 permits slight movements of the bar 6 and consequently the runners on frames 8 relative to the plow to accommodate variable positioning of said plow during its operation, while maintaining the runners flat on the ground.

To provide for ready reversal as well as rapid changing of the runners proper or runner surfaces, which are indicated at 12, the same are symmetrically formed about their centers, having both ends 13 and 14 turned up to accommodate easy engagement with the supporting surface, and having similarly placed lugs 15 and 16 for mounting the runners proper on their frames. The runner frames 8 are of a length slightlv less than the runner surfaces 12 so as to properly aline with the runners and are provided with an upstanding reinforcing rib 12. The ribs 12 are provided with apertured socket members 17 and 18 adapted for the reception of lugs 15 and 16 respectively. Both the lugs 15 and 16 and the walls of the co-operating slots 17 and 18 are provided with apertures or bores 19, 20, 21 and 22 respectively which are adapted for alinement when positioned for operation and for the reception of fasteners comprising the nuts and bolts 23, 24:, 25 and 26 respectively. The runner supporting frames 8 have their extremities turned upwardly to accommodate the upturned ends 13 and 14 of the runners thus, the runners and frames when assembled, will be maintained in snug engagement with each other.

From the foregoing description the use and operation of my invention is easily understood. When the apparatus is set up as above described the runners will remain flat on the ground supporting the forces exerted thereon by the plow with an even distribution of said forces throughout the length of said runners despite the raising and lowering movements of said plow, thus assuring even wear of the running surfaces of said runners. The flexible bar 6 and the pivotal connection at 11 of course will allow suflicient relative motion between the plow wings and the runners to permit this function. The relative position can also be varied at the will of the operator by adjustment of screw 10.

If a portion of the runners becomes more worn than other portions for any reason and the opera-tor desires to reverse the runners to secure more even Wear thereon, he simply jacks up or raises the plow and runners by any suitable means, removesthe fasteners extending through lugs 15 and 16 and sockets 17 and 18 respectively, withdraws lugs 15 and 16 from the sockets, reverses the runners proper and reinserts the same in the sockets 17 and 18 in reverse order.

If the operator desires to change the runners he simply jacks up the plow and runners as before, removes the runner in the manner above out-lined and mounts a new runner in a manner easily understood.

It is thus seen that I have provided a runner or shoe for particular use on snow plows that is adapted to accommodate the variable movements of said plow, and yet remain flat on the supporting surface to assure even wear of the running surface throughout its length.

It is also seen that I have provided a runner or shoe for particular use on snow plows F that is adapted forrapid and easy reversal or change, when occasion warrants.

' I claim 1. A snow plow comprising a pair of wings terminating at their forward edges in an,

acute angle, each of said wings having a rearwardly extending ear, a runner pivotally mounted to each of said cars, a flexible bar connecting said runners, brace rods connected between said flexible bar and a rear portion of each of said runners, a rod connected between said flexible bar and the forward edges of said wings, and adjustable means upon said rod for raising and lowering said plow.

2. A snow plow comprising a pair of wings i terminating at their forward edges in an acute angle, each of said wings having a rearwardly extended car, a slotted frame member pivotally mounted in each of said ears, runner members having projections for engagement in slots of respective runners, said frame members and projections having aligned apertures, bolts connecting respective frame members and projections, a flexible bar connecting said runners, and adjustable means between said flexible bar and the forward edges of said wings for raising and lowering said plow.

3. A slide runner for snow plows and the like comprising a frame having a flat under face and upturned end portions, an upstanding reinforcing rib formed upon said frame and extending between said upturned ends,

socket members formed in said rib adjacent the ends thereof, said socket memlbers each having an aperture extending vertically therethrough and through said face, a runner member abutting said face and having upturned ends for abutting engagement with said upturned ends of said frame, said runner member further having projections spaced like distances from the ends thereof for engagement in respective socket members, said projections and socket members having alined apertures for reception of fastening means, and said rib having an aperture adjacent one end thereof for securement to a snow plow or the like.

WILLIAM JOHN CHAPMAN. 

